read data from a column of table to a combobox

Question

0.00/5 (No votes)

See more:

i want to set data source of one combo box to one column of table and this combo box is one of gridview column my code is :

C#

DataTable p = new System.Data.DataTable();
            p = selectcolor();
            (dataGridView1.Columns[4] as DataGridViewComboBoxColumn).DataSource = p;
 
 

private DataTable selectcolor()
       {
 
           DataTable k = new System.Data.DataTable();
           try
           {
 
               string str = "Data Source=C:\\Documents and Settings\\almas\\Desktop\\BazarKhodro\\khodro.sdf";
               Qconnection.ConnectionString = str;
               Qcommand.Connection = Qconnection;
 

               string commandText = "select color from foroosh";
 
               Qcommand.CommandText = commandText;
               Qcommand.CommandType = CommandType.Text;
               SqlCeDataAdapter a = new SqlCeDataAdapter();
               a.SelectCommand = Qcommand;
               a.Fill(k);
               Qconnection.Open();
               Qconnection.Close();
               return k;
 
           }
           catch (Exception ex)
           {
 
               throw new Exception(ex.Message);
               return k;
           }
       }

after runing i see the content of p but content of combobox is:
System.Data.DataRowView

pls help me

Posted 7-Nov-12 22:52pm

f.sarikhani

Updated 7-Nov-12 22:54pm

jim lahey

v2

Add a Solution

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

jim lahey · Answer 1 · 2012-11-07T22:55:00

Solution 1

You need to set the DisplayMember and ValueMember properties of the DataGridViewComboBoxColumn:

http://msdn.microsoft.com/en-us/library/system.windows.forms.datagridviewcomboboxcolumn.aspx[^]

Only that way will the correct data be displayed in your combo box.

Posted 7-Nov-12 22:55pm

jim lahey

Comments

f.sarikhani 8-Nov-12 5:10am

thanks very much

jim lahey 8-Nov-12 5:18am

My pleasure. If it helped you can mark it as the answer or rate it.

vasim sajad · Answer 2 · 2012-11-07T23:13:00

Solution 2

C#

(dataGridView1.Columns[4] as DataGridViewComboBoxColumn).DataSource = p;
dataGridView1.Columns[4].DisplayMember ="Name";
dataGridView1.Columns[4].ValueMember = "Id";

Posted 7-Nov-12 23:13pm

vasim sajad

Updated 7-Nov-12 23:14pm

v2